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7 papers · 1 filter
Quasiparticle Lifetimes and the Conductivity Scattering Rate
F. Marsiglio, J. P. Carbotte
We compute the single-particle inverse lifetime, along with the conductivity-derived scattering rate, for a metallic system in an s-wave superconducting state. When both electron-p…
Evaluation of the BCS Approximation for the Attractive Hubbard Model in One Dimension
F. Marsiglio
The ground state energy and energy gap to the first excited state are calculated for the attractive Hubbard model in one dimension using both the Bethe Ansatz equations and the var…
Influence of a magnetic field on the antiferromagnetic order in UPt_3
B. Lussier, L. Taillefer, W. J. L. Buyers +2
A neutron diffraction experiment was performed to investigate the effect of a magnetic field on the antiferromagnetic order in the heavy fermion superconductor UPt_3. Our results s…
The Ising-Kondo lattice with transverse field: an f-moment Hamiltonian for URu2Si2?
A. E. Sikkema, W. J. L. Buyers, I. Affleck +1
We study the phase diagram of the Ising-Kondo lattice with transverse magnetic field as a possible model for the weak-moment heavy-fermion compound URu2Si2, in terms of two low-lyi…
The Imaginary Part of the Optical Conductivity of
F. Marsiglio, J. P. Carbotte, A. Puchkov +1
The frequency dependence of the imaginary part of the infrared conductivity is calculated for a superconductor. Sharp structure, characteristic of superconductivity with an order p…
Magneto-Optics of type-II superconductors
E. Choi, H. -T. S. Lihn, H. D. Drew +1
The magneto-optical activity of superconducting observed by Karrai {\it et al.} is not present in many commonly employed models of vortex dyn…